function s=polyint(r)%POLYINT Integration of a Polynomial Object. (MM)% POLYINT(R) returns a polynomial object that is the integral of the% the polynomial object R.% R cannot contain a denominator.% To include the constant of integration, simply add it:% POLYINT(R) + Ro% D.C. Hanselman, University of Maine, Orono ME 04469% 7/21/00% Mastering MATLAB 6, Prentice Hall, ISBN 0-13-019468-9if length(r.d)~=1	error('R Must Not Contain a Denominator.')endn=[r.n./(length(r.n):-1:1) 0];s=mmp(n,r.d,r.v);